Run: 2026-02-20-01KHY92SMPPM98C60PGB8X8BKY

Run Details

Duration:
3.3s
Cost:
$0.000039
Provider:
Mistral

Evaluation summary

Score Evaluator
Details Link
9.78% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
The rain pattered against the window, casting shadows long and dark upon the crumbling mansion’s walls. A single candle flickered weakly, casting eerie light that danced across the dusty floorboards. The clock struck midnight with a loud, jarring chime, signaling the end of another tense, uneasy evening. A shadowy figure slipped past the curtains, their breath visible in the cold, damp air. Whispers echoed faintly through the empty halls, though no one dared to turn and see who spoke. The butler stood rigid, his knuckles white around the brass candlestick, watching the room with hollow eyes. Each step felt heavier than the last, as if the house itself seemed to drag them deeper into its sinister embrace. The last light died out, plunging the grand foyer into complete, suffocating darkness. A key turned in the lock with a sound like a knife slicing through silence. The door swung open, revealing a figure wrapped in a coat that seemed too large for them. Their breath came in ragged gasps, their face pale beneath the dim glow of a single lantern. The air smelled of old wood and something far more sinister, something that clung to the walls like a curse. A voice, soft yet commanding, called out from the darkness, breaking the tense, suffocating spell. The figure hesitated, then stepped forward, their footsteps echoing ominously down the hall. The lantern flickered once, twice, before plunging them into darkness once more. A gunshot rang out, sharp and final, echoing through the empty house. The figure collapsed to the floor, their body still warm, their eyes wide with terror.
created_at"2026-02-20T19:40:29.727Z" 2/20/2026, 7:40:29 PM
model"mistralai/ministral-3b-2512"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency177
moderation_latency(null)
generation_time2701
tokens_prompt46
tokens_completion429
native_tokens_prompt39
native_tokens_completion347
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.0000386
router(null)
provider_responses
0
endpoint_id"b9f6828f-aef9-498a-91f5-6816fbf72420"
id"5a4b1390dc024648935e6fa412689cc5"
is_byokfalse
latency177
model_permaslug"mistralai/ministral-3b-2512"
provider_name"Mistral"
status200
api_type"completions"
id"gen-1771616429-nFNO0b38A2Uw8LtUOcbB"
upstream_id"5a4b1390dc024648935e6fa412689cc5"
total_cost0.0000386
cache_discount(null)
upstream_inference_cost0
provider_name"Mistral"

Evaluation details

Result Evaluator Details Meta Data
9.78% Matches word count n/a
neededCleanfalse
sentences17
wordCounts
016
114
217
315
417
517
621
713
815
917
1017
1120
1215
1313
1412
1512
1615